Pill containers can work in place of a store bought speed loader.
There's pill containers from over the counter tablets, or prescription pill containers.
They come in many different sizes.
Some plastic wrap can be stuffed into a container to keep the lubed conical[s] from rattling around.
Each powder charge needs its own container. Unless you want to wrap each charge into the corner of a plastic bag or paper packet that can be ripped open or unfolded when needed, and then carry more than one charge per container.
By wrapping up the powder charges, 2-3 charges and 2-3 conicals may even fit into one container of a still manageable size.
You just need to find the right size container[s] to meet your needs.
A small belt pouch or a little leather dangle bag or pouch will hold containers or stuff them into a pocket if possible.